/*
 * Copyright 2010-2017 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jetbrains.kotlin.idea.quickfix

import com.intellij.codeInsight.intention.IntentionAction
import com.intellij.openapi.editor.Editor
import com.intellij.openapi.project.Project
import org.jetbrains.kotlin.diagnostics.Diagnostic
import org.jetbrains.kotlin.psi.KtAnnotationEntry
import org.jetbrains.kotlin.psi.KtCallableDeclaration
import org.jetbrains.kotlin.psi.KtFile
import org.jetbrains.kotlin.psi.psiUtil.getParentOfType

class MoveReceiverAnnotationFix(element: KtAnnotationEntry) : KotlinQuickFixAction<KtAnnotationEntry>(element) {

    override fun getFamilyName() = "Move annotation to receiver type"
    override fun getText() = familyName

    override fun invoke(project: Project, editor: Editor?, file: KtFile) {
        val element = element ?: return

        val declaration = element.getParentOfType<KtCallableDeclaration>(true) ?: return
        val receiverTypeRef = declaration.receiverTypeReference ?: return

        receiverTypeRef.addAnnotationEntry(element)
        element.delete()
    }

    companion object Factory : KotlinSingleIntentionActionFactory() {
        override fun createAction(diagnostic: Diagnostic): IntentionAction? {
            val entry = diagnostic.psiElement as? KtAnnotationEntry ?: return null

            val declaration = entry.getParentOfType<KtCallableDeclaration>(true) ?: return null
            if (declaration.receiverTypeReference == null) return null

            return MoveReceiverAnnotationFix(entry)
        }
    }
}
